Investigating Similarity of squares and circles

[size=150][color=#ff0000]Are all circles similar to each other? [/color][/size]
Move the slider to see that all circles are enlargements or reductions of each other.
[size=150][color=#ff0000]Are all squares similar to each other? [/color][/size]
You can change the size and orientation by moving the red dots.
What did you discover?
Are all circles similar to each other?
Are all squares similar to each other?
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Information: Investigating Similarity of squares and circles